Apa itu Desain Web Responsif?
Desain Web Responsif adalah tentang menggunakan HTML dan CSS untuk mengubah ukuran situs web secara otomatis.
Desain Web Responsif adalah tentang membuat situs web terlihat bagus di semua perangkat (desktop, tablet, dan ponsel):
Mengatur Viewport
Saat membuat halaman web responsif, tambahkan <meta>elemen berikut ke semua halaman web Anda:
Contoh
<meta name="viewport" content="width=device-width, initial-scale=1.0">
Pertanyaan Media
Media Query memainkan peran penting dalam halaman web yang responsif.
Dengan kueri media, Anda dapat menentukan gaya yang berbeda untuk ukuran browser yang berbeda.
Contoh:
Ubah ukuran jendela browser untuk melihat bahwa tiga elemen di bawah ini akan ditampilkan secara horizontal pada layar besar dan vertikal pada layar kecil:
Contoh
<style>
.left, .right {
float: left;
width: 20%; /* The width is 20%, by default */
}
.main {
float: left;
width: 60%; /* The width is 60%, by default */
}
/* Use Media Query to
add a breakpoint at 800px: */
@media screen and (max-width:800px) {
.left , .main, .right {width:100%;}
}
</style>
Pelajari lebih lanjut tentang Desain Web Responsif di
Tutorial RWD W3Schools
Gambar Responsif
Responsive images are images that scale nicely to fit any browser size.
When the CSS width property is set to a percentage value, an image will scale up and down when resizing the browser window.
This image is responsive:
Example
<img
src="img_girl.jpg" style="width:80%;height:auto;">
If the max-width property is set to 100%, the image will scale down if it has to, but never scale up to be larger than its original size:
Example
<img src="img_girl.jpg" style="max-width:100%;height:auto;">
Image Depending on Browser Size
The HTML <picture> element allows you to define different images for
different browser window sizes.
Example
<picture>
<source srcset="img_smallflower.jpg" media="(max-width:
600px)">
<source srcset="img_flowers.jpg" media="(max-width:
1500px)">
<source srcset="flowers.jpg">
<img src="img_smallflower.jpg"
alt="Flowers">
</picture>
Responsive W3.CSS
W3.CSS is a free CSS Framework that offers Responsive Design by default.
W3.CSS makes it easy to develop sites that look nice on any device; desktop, laptop, tablet, or phone:
Example
<!DOCTYPE html>
<html>
<meta name="viewport"
content="width=device-width, initial-scale=1">
<link rel="stylesheet"
href="https://www.w3schools.com/w3css/4/w3.css">
<body>
<div class="w3-center w3-padding-64 w3-light-grey">
<h1>My W3.CSS Page</h1>
<p>Resize this page to see the responsive effect!</p>
</div>
<div
class="w3-row-padding">
<div class="w3-third">
<h2>London</h2>
<p>London is the capital city of England.</p>
<p>It is the most populous city in the United Kingdom,
with a
metropolitan area of over 13 million inhabitants.</p>
</div>
<div
class="w3-third">
<h2>Paris</h2>
<p>Paris is
the capital of France.</p>
<p>The Paris area is one of the largest
population centers in Europe,
with more than 12 million
inhabitants.</p>
</div>
<div class="w3-third">
<h2>Tokyo</h2>
<p>Tokyo is the capital of Japan.</p>
<p>It
is the center of the Greater Tokyo Area,
and the most populous
metropolitan area in the world.</p>
</div>
</div>
</body>
</html>
To learn more about W3.CSS, go to our W3.CSS Tutorial.
Bootstrap
Bootstrap is a very popular framework that uses HTML, CSS and jQuery to make responsive web pages.
Example
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap
Example</title>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1">
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script
src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
</head>
<body>
<div class="jumbotron text-center">
<h1>My
First Bootstrap Page</h1>
<p>Resize this responsive page to see the
effect!</p>
</div>
<div class="container-fluid">
<div class="row">
<div class="col-sm-4">
<h2>London</h2>
<p>London is the capital city of England.</p>
<p>It is the most populous city in the United Kingdom,
with a
metropolitan area of over 13 million inhabitants.</p>
</div>
<div class="col-sm-4">
<h2>Paris</h2>
<p>Paris is
the capital of France.</p>
<p>The Paris area is one of the largest
population centers in Europe,
with more than 12 million
inhabitants.</p>
</div>
<div
class="col-sm-4">
<h2>Tokyo</h2>
<p>Tokyo is the capital of Japan.</p>
<p>It
is the center of the Greater Tokyo Area,
and the most populous
metropolitan area in the world.</p>
</div>
</div>
</div>
</body>
</html>
To learn more about Bootstrap, go to our Bootstrap Tutorial.